Passes test-cases again, without hanging the test suite.

The fix for it is not as elegant as I would have hoped but it does the
job, preventing un-needed listeners to be added on the connections.

Author: 3rd-Eden

lib/socket.io/client.js

@@ -67,6 +67,9 @@ Client.prototype._onConnect = function(req, res){
   this.request = req;
   this.response = res;
   this.connection = req.connection;
+	
+	if(!attachConnection) attachConnection = !attachConnection && this.connection.eventsAttached === undefined;
+	this.connection.eventsAttached = true;
 
   if (attachConnection){
     this.connection.addListener('end', function(){
@@ -102,6 +105,7 @@ Client.prototype._onConnect = function(req, res){
   }
 };
 
+
 Client.prototype._payload = function(){
   var payload = [];